| (19) |
 |
|
(11) |
EP 0 226 344 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
19.08.1987 Bulletin 1987/34 |
| (43) |
Date of publication A2: |
|
24.06.1987 Bulletin 1987/26 |
| (22) |
Date of filing: 18.11.1986 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE ES FR GB GR IT LI LU NL SE |
| (30) |
Priority: |
21.11.1985 US 800326
|
| (71) |
Applicant: DeVoe-Holbein International N.V. |
|
() |
|
| (72) |
Inventors: |
|
- Browne, Eric N. C.
()
- Brener, David
()
- Greer, Charles W.
()
- DeVoe, Irving W.
()
- Holbein, Bruce E.
()
- Van der Vlist, Edo
()
|
|
| |
|
| (54) |
Insoluble composition for removing silver from a liquid medium |
(57) For the removal of silver from a liquid medium an insoluble composition is used which
comprises a suitable insoluble carrier and an ethylenediamine residue convalently
fixed at both nitrogen atoms thereof to the surface of said carrier via separate linkages
comprising at least three carbon atoms.